Very interesting, it works like welfare or something...
So I deposit now, and then all new depositors will share all new deposits equally? Interesting
Yes something like that, every new deposit gets shared equally between existing depositors.
So it's good to be first, but it's also not bad to be late, because everyone gets paid!
If you deposit now 1 ETH, and somebody after you deposits 100 ETH, you earn 50 ETH, and he gets 50 back.
If depositor 3 deposits 100 ETH too, then everyone gets 33.33 ETH, and so on.
You get the idea.